HAARP on 2750khz

[KC4RAF]

Ridgescan, I believe you because

many, many years ago, (back in the late 50s early 60s) I had heard stations riding on another stations frequencies. Stations that were many Kilocycle seperated. Being a youngster, I became interested and read some good (at that time) articles about the Luxembourg Effect. At that time, as now, a definitive answer eluded us. But here is an interesting article if you care to read it:
Luxembourg Effect definition of Luxembourg Effect in the Free Online Encyclopedia.
courtesy of "TheFreeDictionary's Encyclopedia".

BTW, I'll not meantion any names/nicknames/handles, but I think we may have either a troll or very dense individual amongst us. Don't let that person's post bother you. Every time you post something, it's always been of interest to us or informative. Keep up the great listening and posting for us. Thank you.

 

[majoco]

Ridgy's original video showed that he was receiving HAARP at at 20dB over S9. Now 'assuming' (careful!) that his R71 has a properly calibrated S meter, then 20 over S9 is about 500uV in 50ohms at the antenna terminals. IMHO this is a sufficient signal to produce cross-modulation in the front-end of the receiver. I don't know about the octave-filters in the front of an R71 but it could be the same filter is used for the BC band as is used for 2.750MHz (unlikely, really!) leaving the receiver wide open for cross-mod on those frequencies.

Just my 2c worth!

 

[zz0468]

We've all heard intermod coming out of both scanners, and high quality commercial radios. What some people don't think about is the fact that intermod can occur in an HF receiver just as easily. It's even possible that the overload condition causing an intermod could be from a very strong signal (nearby AM transmitter, for example) that isn't actually a party to the mix that's being heard, but merely overloads the receiver to the point it goes non-linear and becomes a mixer.

This isn't any great mystery. It's merely an interesting observation.

 

[ridgescan]

Thanks all for the technical support and rafdav for the kind words I bet it's my r71 like Token said-it's getting long in the tooth and you guys know it's working hard every single day for the 3 years I have owned it-although I hear no other intermod, this was the first experience I have had with it..could it be that the HAARP modulation was so strong that it managed to overload the rcvr? I get tons of stuff at +20 and up here with no effect like that on other carriers. Meh it doesn't matter now-but you know I will be looking for it hard now.

 

[majoco]

There's always a compromise between absolute sensitivity, dynamic range and overload points that probably were'nt really given much though when they designed 'amateur' grade receivers. They were probably more concerned with 'bang-for-your-buck'!

I've always hankered for a real 'professional' receiver, but then I think to myself that in my location - a pretty quiet area as far as RF interference is concerned - that I probably won't be any better off than I am now with a my favourite NRD515 and the WinRadio G303e.

Please Santa, can I have a....

Micro-Tel PR 700B Receiver Surveillance Radio - GENERAL COMMUNICATIONS/ SATELLITE/ MILITARY - Communications Equipment

 

[zz0468]

One sure fire way to determine if something is caused by an overloaded receiver is to put some attenuation between the antenna and the radio. If you put a 10 db attenuator and the signal is reduced by more than 10 db, it's an overloaded receiver. If the reduction in signal strength is the same as the value of the attenuator, it's an external signal, not an overloaded receiver.

BTW, here's an interesting mention of the Luxembourg Effect on none other than the HAARP website itself:

HAARP Fact Sheet

It's about a quarter of the way down the page.

 

[Token]

BTW, I'll not meantion any names/nicknames/handles, but I think we may have either a troll or very dense individual amongst us.

Ahhh, I am glad I am not the only one getting that opinion. And wondering if there was some relationship to Daniel_Boone.

T!

 

[KC4RAF]

Token, That's who I thought it was with a new handle!

Now where did I lay my whip?! lol

 

[ridgescan]

What-so this is some pissy little interwebz punk who get himself off by trolling? What a waste. So is that his genuine callsign as his handle?

 

[Shortwave2200]

Ok, dumb question, what is HAARP Exactly.

 

[Token]

Ok, dumb question, what is HAARP Exactly.

HAARP Home Page and High Frequency Active Auroral Research Program - Wikipedia, the free encyclopedia

T!

 

[br4k3r]

I have been watching the HAARP frequencies every night and caught them tonight at 0620utc being very strong-SO strong, that I could hear it after making this video, on the r71a through the MW station KFMB I had going on 760khz! It was punching through the broadcast! I tuned to 2.5 and 5mhz and heard it through them too, swung back to 2750khz and sure enough, there it was at +20.
‪HAARP on Shortwave 2750khz‬‏ - YouTube

can you put a wav file online I want to see the spectrogram. also, how do you know it's haarp? it could realistically be any ionosonde.

 

[ridgescan]

can you put a wav file online I want to see the spectrogram. also, how do you know it's haarp? it could realistically be any ionosonde.

I don't know how to do a wav file-can you use my youtube video's sound for it?
I don't know about other ionosondes but I do know 2750khz is and has always been listed in the NASWA spreadsheet as a "HAARP Tones" frequency. I just go by that, and other observers' loggings of activity on that frequency as HAARP. Can you site other ionosondes for that frequency?

 

[br4k3r]

No, I was just offering some argumentative insight. Wav files would be better for spectral analysis tools than a youtube video.

 

[majoco]

br4k3r - have'nt you got a receiver of your own?

 

[Token]

No, I was just offering some argumentative insight. Wav files would be better for spectral analysis tools than a youtube video.

Depends on what kind of wav files you mean. I do, by the way, have SDR recordings, both 50 kHz width and 100 kHz width, of the transmissions of the same waveforms the next night. Of course I do not have recordings of the mixing of signals that ridgescan was seeing, but I do have the high power transmissions themselves. Such as here: ‪Oddities Station, HAARP, July 24, 2011, 0818 UTC, 2750 kHz‬‏ - YouTube

For the specific station that ridgescan is talking about we (the ones who were listening to it at the time), naturally, cannot be 100% sure it was HAARP. But, there are some strongly supportive indicators.

-Working on a known primary HAARP frequency.
-The near real-time waterfall display on the HAARP web site strongly indicated HAARP was transmitting at that time, on that frequency. Further, it agreed on all of the frequency changes and steps seen.
-From my location a combination of directional antennas indicated that the signal originated from about the same bearing as HAARP is from my location, about 336 degrees true.

All-in-all I feel that it can be said that these transmissions most probably are HAARP. But, like many things on shortwave, it can not be said for sure. There is, however, more indication this is HAARP than we have for the origin of many signals on shortwave.

T!

 

[KE7IZL]

Micro-Tel PR 700B Receiver Surveillance Radio - GENERAL COMMUNICATIONS/ SATELLITE/ MILITARY - Communications Equipment looks like a VLF, LF, MF receiver. Looks awesome, but also insanely expensive!

 

[KE7IZL]

Also I'm not trolling. Look up my callsign on a website that has callsign database (think QRZ has one). well I'm an avid believer that the HAARP is awesome tech, and I cringe and want to shout back when anyone even HINTS that it's a conspiracy.

 

[ridgescan]

Also I'm not trolling. Look up my callsign on a website that has callsign database (think QRZ has one). well I'm an avid believer that the HAARP is awesome tech, and I cringe and want to shout back when anyone even HINTS that it's a conspiracy.

big frikkin deal-so tell me bigshot-at what point did I "hint" conspiracy? Site me the posts. You owe me an apology for calling me crazy and paranoid for posting my observations.

 

[KE7IZL]

big frikkin deal-so tell me bigshot-at what point did I "hint" conspiracy? Site me the posts. You owe me an apology for calling me crazy and paranoid for posting my observations.

Sorry for any offense.
I just though you were trying to attribute certain properties to the signal you heard that went beyond conventional physics (even beyond the Luxembourg effect which is itself controversial, as you weren't properly lined up with the signal for this effect, but seemed to be experiencing it anyway), and that sounded like the start of a conspiracy theory. Sorry if I misunderstood your post, and came away with a mistaken idea.